Wall charger



FIG. 1 is a perspective view of a wall charger showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is another perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof.

CLAIM The ornamental design for a wall charger, as shown and described.